Accession Number:
ADA190736
Title:
Anomalies in the Heat-Capacity Signatures of Submonolayer Adsorbates with Attractive Lateral Interactions.
Descriptive Note:
Technical rept.,
Corporate Author:
STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY
Personal Author(s):
Report Date:
1988-02-01
Pagination or Media Count:
40.0
Abstract:
The analytic closed form of the heat-capacity signatures previously derived for the McQuistan-Hock MQH model of a lattice gas is applied to a various adsorbed systems for which the lateral interaction varies from a few meV to about 300 meV. It is shown that whenever the adsorption system can be described by a two-dimensional gas on which the substrate effects are less important than the adatom-adatom interactions, the computed temperatures at which the heat-capacity signatures display their maximum are in excellent agreement with the experimental measurements. Keywords Heat capacities, Submonolayer adsorbates, Attractive lateral interactions, Anomalies, McQuistan hock model, Two dimensional lattice.
Descriptors:
Subject Categories:
- Thermodynamics